side effects from vitamin b12 injections in humans Potential Injection How Long Do The Side
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These conditions however, are rare, and they typically come when individuals are taking higher dosage levels of the vitamin

Fourman, L.T., Czerwonka, N., Feldpausch, M.N., Weiss, J.J., Mamputu, J., Falutz, J.M., Morin, J., Marsolais, C., Stanley, T.L., & Grinspoon, S.K
In rare cases, more serious side effects can occur, such as allergic reactions, which might include itching, difficulty breathing, or swelling of the face, lips, or tongue

Problems with one will automatically create issues with the other
